Patents by Inventor Jeffrey E. Stahmann

Jeffrey E. Stahmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10729909
    Abstract: A system and method to sense heart sounds with one or more implantable medical devices according to one or more signal processing parameters. The method alters one or more of the parameters as a function of one or more physiologic triggering events. The method then senses heart sounds with the one or more implantable medical devices according to at least the one or more altered signal processing parameters.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: August 4, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, Krzysztof Z. Siejko, Carlos Haro, Abhilash Patangay, Gerrard M. Carlson, Andres Belalcazar
  • Patent number: 10722720
    Abstract: At least one of a first medical device and a second medical device may be implanted within a patient while the second medical device may optionally be proximate but external to the patient. At least one of the medical devices has an antenna having at least two electrodes and at least one of the medical devices has an antenna having at least three electrodes. The medical devices can communicate via conducted communication through the patient's tissue between a first pair of electrodes and a second pair of electrodes. At least one of the pairs of electrodes can be selected in accordance with the signal strength of the communication vector between the first and second pairs of electrodes.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: July 28, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, William J. Linder, Keith R. Maile
  • Patent number: 10716500
    Abstract: Embodiments herein include implantable medical systems, devices and methods including chemical sensors. In an embodiment, an implantable medical device system includes a chemical sensor; a fluid state sensor such as a posture sensor; an activity sensor; and/or a respiration sensor. The implantable medical device system can further include normalization circuitry receiving data from the chemical sensor and the fluid state sensor and normalizing the chemical sensor data based on data from the fluid state sensor. In an embodiment, a method of operating an implantable medical device system is included. The method can include measuring the amount of a chemical analyte using a chemical sensor, measuring the fluid status in a patient using a fluid state sensor, and normalizing the measured amount of the chemical analyte as indicated by the chemical sensor using normalization circuitry based on data from the fluid state sensor. Other embodiments are also included herein.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: July 21, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Jeffrey E. Stahmann
  • Publication number: 20200215345
    Abstract: The current technology relates to a shock deferral unit that is portable by an ambulatory patient. The shock deferral unit has a bi-directional communication device configured to receive a notification of an impending shock from a defibrillator and configured to send an instruction to defer the impending shock to the defibrillator. An authentication interface is configured to receive authentication data from a user. A user instruction interface is configured to receive the instruction to defer the impending shock from the user. An authentication device is configured to authenticate the user based on the authentication data and instruct the bi-directional communication device to send the instruction to defer a shock upon authentication and receipt of the instruction to defer the shock.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 9, 2020
    Inventors: Jeffrey E. Stahmann, Dan C. Goldman
  • Publication number: 20200215266
    Abstract: A system may include an input device configured to receive a signal indicative of elevated glucose in a patient, and an electrical stimulator configured to electrically stimulate at least one skeletal muscle. The system may further include a controller operably connected to the electrical stimulator. The controller may be configured for delivering a glucose therapy in response to the signal by controlling the electrical stimulator. The system may be configured to deliver the therapy in combination with other glucose therapies, and the therapy may be titrated based on a sensed parameter or patient feedback.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 9, 2020
    Inventors: Vijay Koya, Bryan Allen Clark, Keith R. Maile, Michael J. Kane, Jeffrey E. Stahmann, Elizabeth Mary Annoni
  • Publication number: 20200197700
    Abstract: Cardiac activity of the heart can be sensed using, for example, one or more leadless cardiac pacemakers (LCPs) that are implanted in a close proximity to the heart. Sensing cardiac activity by the one or more leadless cardiac pacemakers (LCPs) can help the system in determining an occurrence of cardiac arrhythmia. For treatment purposes, electrical stimulation therapy, for example anti-tachyarrhythmia pacing (ATP) therapy, can be delivered by at least one of the devices of the system. Such therapy can help treat the detected cardiac arrhythmia. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to assist in providing pacing therapy. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to temporarily stop providing therapy or to simply shut down while another device provides therapy.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Applicant: Cardiac Packemakers, Inc.
    Inventors: Jeffrey E. Stahmann, William J. Linder, Howard D. Simms, JR., Keith R. Maile, Michael J. Kane
  • Patent number: 10688304
    Abstract: A leadless cardiac pacemaker (LCP) is configured to sense cardiac activity and to pace a patient's heart and is disposable within a ventricle of the patient's heart. The LCP may include a housing, a first electrode and a second electrode that are secured relative to the housing and are spaced apart. A controller is disposed within the housing and is operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart. The LCP may include a pressure sensor and/or an accelerometer. The controller may determine an atrial contraction timing fiducial based at least in part upon two or more of a signal from the pressure sensor, a signal from the accelerometer representing, and an electrical cardiac signal.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: June 23, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Qi An, Pramodsingh Hirasingh Thakur, Yinghong Yu, Michael J. Kane, Jeffrey E. Stahmann, Keith R. Maile
  • Patent number: 10639486
    Abstract: Implantable medical device (IMD) such as leadless cardiac pacemakers may include a rechargeable power source. In some cases, the IMD may include a plurality of receiving coils that may capture a non-radiative near-field energy and then convert the near-field energy into electrical energy that may be used to recharge the rechargeable power source. Accordingly, since the rechargeable power source does not have to maintain sufficient energy stores in a single charge for the entire expected life of the IMD, the power source itself and thus the IMD, may be made smaller while still meeting device longevity expectations.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 5, 2020
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: William J. Linder, Michael J. Kane, Jeffrey E. Stahmann, Jacob M. Ludwig, Brendan Early Koop, Daniel Joseph Landherr, Greg Paul Carpenter, Keith R. Maile
  • Publication number: 20200121251
    Abstract: Embodiments of the present disclosure relate to monitoring one or more physiological parameters of a subject using a multilayer wearable device. In an embodiment, a multilayer wearable device is configured to be attached to a subject. The multilayer wearable device comprises a substrate having multiple layers including a first portion connected to a second portion. The first portion has a first side and a second, opposite side. And the second portion has a first side and a second, opposite side. The first side of the first portion is configured to be attached to the subject and the second portion is arranged on top of the first portion such that the first side of the second portion is disposed adjacent the second side of the first portion. And, the wearable device includes one or more electrical components configured to sense a physiological parameter of the subject.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Jan Weber, Jeffrey E. Stahmann, James M. Peck, Keith R. Maile
  • Publication number: 20200121252
    Abstract: Embodiments disclosed herein relate to devices and methods for monitoring one or more physiological parameters of a subject. In an embodiment, a wearable device comprises a substrate configured to attached to a subject's skin. The substrate comprises a middle portion arranged between two end portions, wherein the middle portion is more flexible than at least one of the end portions. The wearable device also comprises a physiological sensor arranged on the middle portion. The physiological sensor is configured to sense a physiological signal of the subject when the wearable device is attached to the subject's skin. And, the wearable device comprises one or more electrical components arranged on at least one of the end portions, wherein at least one of the one or more electrical components is coupled to the physiological sensor.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Jan Weber, Jeffrey E. Stahmann, Keith R. Maile, James M. Peck
  • Patent number: 10617873
    Abstract: Cardiac activity of the heart can be sensed using, for example, one or more leadless cardiac pacemakers (LCPs) that are implanted in a close proximity to the heart. Sensing cardiac activity by the one or more leadless cardiac pacemakers (LCPs) can help the system in determining an occurrence of cardiac arrhythmia. For treatment purposes, electrical stimulation therapy, for example anti-tachyarrhythmia pacing (ATP) therapy, can be delivered by at least one of the devices of the system. Such therapy can help treat the detected cardiac arrhythmia. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to assist in providing pacing therapy. In some instances, one of the leadless cardiac pacemakers can instruct one or more of the other devices to temporarily stop providing therapy or to simply shut down while another device provides therapy.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: April 14, 2020
    Assignee: Cardiac Packemakers, Inc.
    Inventors: Jeffrey E. Stahmann, William J. Linder, Howard D. Simms, Jr., Keith R. Maile, Michael J. Kane
  • Patent number: 10589113
    Abstract: The current technology relates to a shock deferral unit that is portable by an ambulatory patient. The shock deferral unit has a bi-directional communication device configured to receive a notification of an impending shock from a defibrillator and configured to send an instruction to defer the impending shock to the defibrillator. An authentication interface is configured to receive authentication data from a user. A user instruction interface is configured to receive the instruction to defer the impending shock from the user. An authentication device is configured to authenticate the user based on the authentication data and instruct the bi-directional communication device to send the instruction to defer a shock upon authentication and receipt of the instruction to defer the shock.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: March 17, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jeffrey E. Stahmann, Dan C. Goldman
  • Patent number: 10555704
    Abstract: Systems and methods for managing machine-generated alerts of a medical event such as worsening heart failure (WHF) are described. A patient management system includes a patient database of information about a correspondence between a plurality of alert thresholds (ATHs) and corresponding clinical outcome indicators (COIs) for a plurality of patients. A control circuit can query the patient database for a matching patient that meets specific query criteria compared to a target patient, retrieve an ATH-COI correspondence associated with the matching patient, and determine the alert threshold using a user input of a COI and the retrieved ATH-COI correspondence. A medical event detector detects the medical event using physiological signals sensed from the target patient and the determined alert threshold.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: February 11, 2020
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Viktoria A. Averina, Pramodsingh Hirasingh Thakur, Ramesh Wariar, Qi An, Yi Zhang, Jeffrey E. Stahmann
  • Publication number: 20200038662
    Abstract: Various aspects of the present subject matter relate to an implantable device. Various device embodiments comprise at least one port to connect to at least one lead with at least electrode, stimulation circuitry connected to the at least one port and adapted to provide at least one neural stimulation therapy to at least one neural stimulation target using the at least one electrode, sensing circuitry connected to the at least one port and adapted to provide a sensed signal, and a controller connected to the stimulation circuitry to provide the at least one neural stimulation therapy and to the sensing circuitry to receive the sensed signal. In response to a triggering event, the controller is adapted to switch between at least two modes. Other aspects and embodiments are provided herein.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Imad Libbus, Andrew P. Kramer, William J. Linder, Jeffrey E. Stahmann
  • Publication number: 20200022588
    Abstract: A hospitalization management system including a heart failure analyzer that receives diagnostic data including at least sensor data representative of one or more physiological signals sensed from a hospitalized patient using one or more sensors and assesses risk of rehospitalization for the patient using the diagnostic data. The outcome of the risk assessment is used during and following the patient's hospitalization for reducing the risk of rehospitalization.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Ramesh Wariar, Jeffrey E. Stahmann, Julie A. Thompson, Helen L. Reeve-Stoffer
  • Publication number: 20200008685
    Abstract: This document discusses, among other things, systems and methods to determine a blood pressure measurement of a subject, such as a systolic blood pressure of a subject, a diastolic blood pressure of the subject, or both, using received heart sound information and plethysmography information of the subject. The system can include a signal receiver circuit configured to receive the heart sound information and plethysmography information of the subject, and an assessment circuit configured to determine the systolic and diastolic blood pressure of the subject using the received heart sound information and the plethysmography information of the subject.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 9, 2020
    Inventors: Jeffrey E. Stahmann, Pramodsingh Hirasingh Thakur
  • Publication number: 20200001092
    Abstract: An implantable medical device (IMD) that includes a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a gyroscope secured relative to the housing. The IMD may include circuitry in the housing in communication with the first electrode, the second electrode, and the gyroscope. The circuitry may be configured to determine and store a plurality of torsion data measurements, from which a representation of a twist profile may be determined.
    Type: Application
    Filed: August 8, 2019
    Publication date: January 2, 2020
    Applicant: CARDIAC PACEMAKERS, INC.
    Inventors: Bin Mi, Pramodsingh Hirasingh Thakur, Jeffrey E. Stahmann, Keith R. Maile, Qi An, Brendan Early Koop, Yinghong Yu, Viktoria A. Averina, Michael J. Kane, Krzysztof Z. Siejko
  • Patent number: 10517498
    Abstract: A cardiac rhythm management system includes a first implantable device such as a defibrillator and a second implantable device such as a leadless cardiac pacemaker. A programmer is configured to receive and display heart data emanating from the implantable defibrillator and from the leadless cardiac pacemaker. The heart data emanating from the leadless cardiac pacemaker is displayed in temporal alignment with the heart data emanating from the implantable defibrillator.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: December 31, 2019
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Jeffrey E. Stahmann, Michael J. Kane, Paul Huelskamp, Keith R. Maile
  • Patent number: 10493280
    Abstract: Various aspects of the present subject matter relate to an implantable device. Various device embodiments comprise at least one port to connect to at least one lead with at least electrode, stimulation circuitry connected to the at least one port and adapted to provide at least one neural stimulation therapy to at least one neural stimulation target using the at least one electrode, sensing circuitry connected to the at least one port and adapted to provide a sensed signal, and a controller connected to the stimulation circuitry to provide the at least one neural stimulation therapy and to the sensing circuitry to receive the sensed signal. In response to a triggering event, the controller is adapted to switch between at least two modes. Other aspects and embodiments are provided herein.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: December 3, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Imad Libbus, Andrew P. Kramer, William J. Linder, Jeffrey E. Stahmann
  • Patent number: 10478629
    Abstract: A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient's heart. The LCP may include a housing, a first electrode secured relative to the housing, a second electrode secured relative to the housing, and a pressure sensor secured relative to the housing and coupled to the environment outside of the housing. The LCP may further include circuitry in the housing in communication with the first electrode, the second electrode, and the pressure sensor. The circuitry may be configured to determine and store a plurality of impedance-pressure data pairs, from which a representation of a pressure-volume loop may be determined.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 19, 2019
    Assignee: CARDIAC PACEMAKERS, INC.
    Inventors: Qi An, Pramodsingh Hirasingh Thakur, Yinghong Yu, Jeffrey E. Stahmann, Michael J. Kane